各位大哥周末愉快。快救救我吧，不然我要放弃C++了。

【Goods.cpp】
#include"WriteFile.cpp"
#include<iostream>
#include<string>
#include"Date.cpp"
using namespace std;
class Date;
class GWriteFile;
class GReadFile;
class CGoods
{
friend GWriteFile;
friend GReadFile;
friend Date;
protected:
string GoodsName;
string GoodsNumber;
string GoodsType;
string GoodsSource_Address;
float GoodsInPrice;
int GoodsInAmount;
Date GoodsInDate;
public:
CGoods();
CGoods(string,string,string,string,float,int,Date);
void InputGoods();
void SaveGoods();
void OutputGoods();
};

CGoods::CGoods():GoodsName(""),GoodsNumber(""),GoodsType(""),GoodsSource_Address(""),GoodsInPrice(0),GoodsInAmount(0),GoodsInDate(Date &){}
CGoods::CGoods(string Name,string Number,string Type,string Source_Address,float InPrice,int InAmount,Date InDate)

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